Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
122 PM MST Sun Jan 4 2026
IDZ060-051200-
/O.UPG.KPIH.WW.Y.0002.000000T0000Z-260105T2200Z/
/O.NEW.KPIH.WS.W.0001.260104T2022Z-260105T2200Z/
Bear River Range-
Including the cities of Emigration Summit
122 PM MST Sun Jan 4 2026
...WINTER STORM WARNING IN EFFECT UNTIL 3 PM MST MONDAY...
* WHAT...Heavy snow. 4 to 8 inches below 7000 feet with 1 to 2 feet
expected above 7000 feet.
* WHERE...Bear River Range.
* WHEN...Until 3 PM MST Monday.
* IMPACTS...Travel could be very difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
210 PM MST Sun Jan 4 2026
UTZ110>112-051315-
/O.CON.KSLC.WW.Y.0002.000000T0000Z-260106T0600Z/
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-
Including the following locations - Mantua, Moon Lake, Alta,
Mirror Lake Highway, Brighton, and Logan Summit
210 PM MST Sun Jan 4 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST
MONDAY...
* WHAT...Snow expected. Total snow accumulation between 8 to 18
inches expected, mainly above 7500 feet. Locally higher snow
accumulation in excess of 20 inches possible for locations above
8500 feet across the Wasatch and Bear River Ranges.
* WHERE...The Wasatch Mountains, and Western Uinta Mountains.
* WHEN...Until 11 PM MST Monday.
* IMPACTS...Travel could be difficult at times, especially late this
afternoon through Monday morning. Traction law restrictions may be
enacted.
* ADDITIONAL DETAILS...Snow will increase in coverage this evening,
with the most intense snow expected overnight tonight through
Monday morning. Mountain locations favored under southwest flow
such as Provo Canyon and Snowbasin may see locally higher totals
from orographic enhancement.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
For more information from the National Weather Service visit
https://weather.gov/saltlakecity.
For information on potential travel impacts visit
http://udottraffic.utah.gov
HM
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
210 PM MST Sun Jan 4 2026
UTZ113-051315-
/O.EXB.KSLC.WW.Y.0002.260105T0000Z-260106T0600Z/
Wasatch Plateau/Book Cliffs-
Including the following locations - Indian Canyon and Scofield
210 PM MST Sun Jan 4 2026
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST MONDAY...
* WHAT...Snow expected. Total snow accumulations 4 to 8 inches,
mainly above 7500 feet.
* WHERE...Wasatch Plateau/Book Cliffs.
* WHEN...Until 11 PM MST Monday.
* IMPACTS...Travel could be difficult at times, especially overnight
through Monday morning.
* ADDITIONAL DETAILS...Expect the heaviest snowfall overnight
through the early Monday morning hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
210 PM MST Sun Jan 4 2026
UTZ125-051315-
/O.EXB.KSLC.WW.Y.0002.260105T0000Z-260105T2100Z/
Southern Mountains-
Including the following locations - Alton and Brian Head
210 PM MST Sun Jan 4 2026
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 2 PM MST MONDAY...
* WHAT...Snow expected. Total snow accumulations 4 to 8 inches,
mainly above 7500 feet.
* WHERE...Southern Mountains.
* WHEN...Until 2 PM MST Monday.
* IMPACTS...Travel could be difficult at times, especially overnight
through Monday morning.
* ADDITIONAL DETAILS...Expect the heaviest snowfall overnight
through the early Monday morning hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
110 PM MST Sun Jan 4 2026
WYZ014-051400-
/O.CON.KRIW.WW.Y.0002.000000T0000Z-260105T1800Z/
Wind River Mountains West-
110 PM MST Sun Jan 4 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
MONDAY...
* WHAT...Snow. Total snow accumulations 6 to 10 inches with locally
higher amounts up to 2 feet. Snow accumulations of 4 to 8 inches
along South Pass.
* WHERE...Wind River Mountains West.
* WHEN...Until 11 AM MST Monday.
* IMPACTS...Travel could be very difficult especially along South
Pass late Sunday evening and early Monday morning.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter.
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
110 PM MST Sun Jan 4 2026
WYZ024-051400-
/O.CON.KRIW.WW.Y.0002.000000T0000Z-260105T1800Z/
Salt River and Wyoming Ranges-
110 PM MST Sun Jan 4 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
MONDAY...
* WHAT...Snow. Total snow accumulations between 6 and 10 inches,
with locally higher amounts of 12 to 16 inches.
* WHERE...Salt River and Wyoming Ranges.
* WHEN...Until 11 AM MST Monday.
* IMPACTS...Travel could be very difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter.
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.
&&
$$
For more information from the National Weather Service, visit
https://weather.gov/riw/ .
Dziewaltowski
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Grand Junction CO
303 AM MST Sun Jan 4 2026
COZ001>014-017>023-UTZ022>025-027>029-051015-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
303 AM MST Sun Jan 4 2026
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
Patchy fog can be found in a few low spots around the region this
morning. Widespread dense fog in the Uinta Basin continues into mid
day before lifting out. Mild conditions with temperatures well above
average continue today with flurries possible on the northern
mountains and the Uintas. Tonight, a stronger wave works across the
region and will bring additional snow to the mountains. Warm
temperatures and low snow rates are expected to keep accumulations in
check. Monday morning commuters are advised to check road conditions
before heading out, especially for mountain passes.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Snow spreads across the mountains Monday. Snow levels remain above
7000 feet though. Snow tapers Monday night, but light flurries can be
expected on Tuesday and Wednesday for the northern mountains. A more
significant system arrives Thursday and Friday, but models are
inconsistent with available moisture. Temperatures will trend cooler
Thursday and beyond, with drier conditions arriving next weekend.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.
$$
Hazardous Weather Outlook
National Weather Service Riverton WY
154 AM MST Sun Jan 4 2026
WYZ001>020-022>030-051300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
154 AM MST Sun Jan 4 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR THE WESTERN
MOUNTAINS AND YNP FROM 11 PM THIS EVENING TO 11 AM MST MONDAY...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Light snow possible over western portions through the morning,
increasing by early afternoon. Periods of moderate to heavy snow,
along with wind gusts of 25 to 35 mph, will occur this afternoon into
the evening. Expect travel impacts over Teton and Togwotee Passes.
Snowfall amounts of 8 to 16 inches, with locally higher amounts up to
2 feet, is still expected in the mountains. 1 to 3 inches expected
in the Jackson/Star Valleys, with most accumulations occurring after
sunset this evening.
Wind gusts of 50 to 60 mph expected in the Casper area, and gusts up
to 80 mph expected over South Pass/Red Canyon. These winds will
subside by sunrise, with gusts up to 45 mph remaining possible
through the rest of the day. Gusts up to 70 mph will be possible
north of Cody near Clark through the morning after sunrise.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Monday...Snow will continue over western portions, with an additional
1 to 3 inches possible in the afternoon. There is a 30 to 50% chance
for snow showers across southern portions, with little to no snow
accumulation. Reduced visibilities from blowing snow will be the
main hazard.
Tuesday...Light snow continues over northwestern portions. Wind gusts
of 40 to 50 mph possible over the Wind Corridor and the east slopes
of the Absaroka, Bighorn and Wind River Mountains.
Wednesday into Thursday...A strong cold front will move through the
region Wednesday or Thursday, bringing colder, more seasonal
temperatures to the area through the rest of the week into the
weekend. Chances for widespread precipitation is higher, however
amounts are looking to be on the low end.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
